On Play: Remove all balls from the board

Take this broom to sweep away all those pesky balls from the board. This more or less resets every trap tile and undoes any setup for destroying tiles with the 3 balls rule or setting off Bomb tiles.

I haven't gotten to playtesting it yet so I'm not sure how relevant that ends up being in practice.

Rules clarification (as designed):

• The effect is mandatory
• All balls are removed "at once", so if you knock one out while trying to remove it, it won't trigger anything or win you the game (if it somehow ends in the end zone), likewise try your best to not mess up with mechanical parts in the process
• If a ball is part of a mechanism (like on Sozu tiles), then I'd say leave it in (but I won't stop you from sweeping it if you think it's fun and the tile's owner is ok)